My Peeps (S03E11)

After playing video games excessively and staring at the Sun, Billy damages his eyesight. Concerned, Mandy and Grim recommend a visit to an eye doctor. However, Billy is adamant about avoiding glasses or laser treatment. In a desperate move, Grim uses his scythe to alter Billy's vision. While this gives him crystal-clear sight, it also allows him to witness disturbing future events, particularly accidents involving his close friends. Grim repeatedly zaps Billy's eyes to revert them back to their original state, leaving Billy with an unusual appearance.